MadModder
Gallery, Projects and General => Project Logs => Topic started by: OKTomT on November 27, 2017, 09:03:44 PM
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I am going to build a vintage board track racer with the v twin engine that I built on a thread here about two years ago. Here is a picture to jog your memory.
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Should be good!
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To build this bike without plans I need to start with the engine and a set of wheels. I have the engine so what to do about the wheel. I could buy some but I can't find some I like. I built some for the last bike but they had no drop center and it was tough installing the tires so I have decided to try to make some dies and try to form a drop center in a piece of 2-1/2-1/8 Chanel and then roll it to the radius I need. After making three sets of dies I Finally made some that I think will work. Here are some pictures of the process
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Interesting stuff! I've never seen pics of this process before..
PK
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Wow. Rolling your own rims. That is real DYI! Awesome.
Mark
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Mark I like to make all the parts that I can. Its not practical and definitely pushes my limits .
Here are some pictures of the spokes,hub, rim,and die I used to forge the head on the spokes.
I am still having a little trouble with the photo size thing some moderators please delete the over size ones thanks.
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Well, this thread has certainly got my attention. Really looking forward to seeing the updates.
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Do you use a hydraulic press to forge the spoke heads onto the die?
Mark
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Aaaaaw Tom :drool:
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What is a board (bored) track racer?
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Harder to explain than the concept is... Oval track, built from boards (wood, aka "brown stuff"). Follow the link; http://flashbackfab.com/excelsior-homepage/
This is one heck of a build!
Kjelle
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Mark the die is split so that when a spoke is in it and put in a vice it squeezes on the spoke and holds it firm then the end of the spoke is heated and forged in to the die see picture.
I have have been working on truing the wheels . I got the front one done and mounted the tire. they are Avon Speedmaster 3.00-21
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Interesting so are the spokes tapped into the hub or do you insert nipples through the hub?
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Harder to explain than the concept is... Oval track, built from boards (wood, aka "brown stuff"). Follow the link; http://flashbackfab.com/excelsior-homepage/
This is one heck of a build!
Kjelle
Wow, that link cost me most of saturday evening and sunday morning. Superb.
Mark
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Osselton yes the hub is threaded.
The flashbackfab bikes are a very good example of a board track racer and thanks for posting the link but that is not what you are going to see in this post what I am building will have some similarities to a board track racer but is not a replica of a original. I enjoy building engines and the bike is basically a display stand for my engine all though it should be rideable it will be ridden very little
Here is a picture of the rear hub and sprocket blank
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I made a little more progress on the rear wheel and sprocket . I am going to make the front forks next.
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Its coming along good, whats that on the far side of the hub it looks like a spedometer fixture?
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Tom it's a grease cup to lube the wheel bearings. It's for looks but could be used if I took the inner seals out of the wheel bearings.
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I have made a little progress on my bike. The forks are done and the frame is about done. Here are some pictures.
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Hi Tom
It,s looking good.
Cheers David
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I got the peddle holder mounted and the frame welded up and then mounted the engine in the frame. Here are the pictures.
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Coming along good! Are you sure you don't want to turn the front end into a girder front end?
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Osselton I like the way the ridgid front end looks but I may change it in the future. There is so many parts that still need to be made I don't want to remake the already made ones yet.
I have been working on the handle bars and final drive here is a picture.
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Very cool. Quite the labour of love.
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Hi Tom.
Do you have updates on the board track racer?
CS